| Cities are in pivotal position in China's national economic and social development, but its rapid economic growth also brings great consumption of resources and environmental pressures. In this particular stage of development, research on the relationship between Beijing economic growth and environmental pollution, the explore Beijing economy on the path of sustainable development, and seeking the win-win situation with fast economic growth and environmental constant improvement, has very important practical significance. "kuznets curve" is a u-shaped curve describing the relationship between per capita income level and environmental pollution levels to illustrate the effects of economic growth on the environmental pollution degree, that is the environmental pollution degree first worsening then to gradually improve in the economic development process, for this " The Green Solow Model ", through quantitative analysis gives a reasonable explanation. Ongoing technological progress abatement drives emissions per unit of output downward at a constant rate both in and out of steady state. Initially the Solow model's fast initial growth overwhelms progress in abatement to produce a period of initially rising emission levels. Aggregate emissions rise even though emissions per unit of output are falling. Technological progress in abatement however eventually overwhelms the slowing growth of output as the economy approaches its balanced growth path. Aggregate emissions start to decline while emissions per unit of output continue their fall. Define sustainable growth as a balanced growth path generating rising consumption per capita and an improving environment. Applying the conclusion of "The Green Solow Model" to carry out empirical analysis, the average level of comparison of Beijing economic growth rate with pollution treatment technology progress rate is negative in recent years. Namely, Beijing economy has undergo the sustainable growth in a certain sense relative to the pollutants concerned, Beijing's economy and environment have promote each other coordination in a certain extent. But considering Beijing economy is still in rapid growth periods and does not reach the steady-state growth situation, Beijing air pollutants released growth rates are stable negative, in order to promote coordinate development between economic growth and environmental quality of Beijing, improve progress of pollution control technology, continuously improve each pollutant release rate, make pollutant total amount of release rate in the course of economic development is stable negative, is the clear direction of sustainable development of Beijing economy. |